132 MACDOUGALL—ON THE LIFE-HISTORY 
and later, on removing the soil from above two of them, RAzz0- 
phagus depressus walked out. On turning over more of the 
soil other two Rhzzophagus beetles started to walk away, but 
on being touched they remained quite motionless, with their 
legs and antennz drawnin. Others in the turned-out earth, 
not quite mature, had their heads and under surface quite red- 
brown, while their wing covers still remained whitish. 
WHEN RHIZOPHAGUS MAY BE FOUND.—Without professing 
to discuss this question, Perris incidentally records that the 
adult beetles may be found flying in the evenings in February, 
and also got below the bark in May and June. He notes also 
that the larve may be got even in January, and the pupa in 
May and June. 
As I have because of its practical importance recorded times 
of appearance and finding of the different stages of other 
Coleoptera, I give here in tabular form from my notes the 
months of the year in which I have taken R4. depressus in any 
of its stages. 
MONTH. STAGE. 
January . (Larva. Perris.) 
February Adult and Larva. 
March Larva. 
April Larva. 
May Larva. (Pupa and Adult. Perris.) 
June Larva and Adult. (Pupa. Perris.) 
July Larva and Pupa. — 
August . Larva, Pupa, and Adult. 
September Adult. 
October . Adult and Larva. 
November 
December 
In one case the larvee of February and March were from a 
Pine log that I had kept under cover in a sack, and it is 
reasonable to suppose that the larvae were present at the end 
= the previous October when I placed the Pine log in the 
ack. 
The fact of the finding of different stages in the life-history 
